Connect To The Debug Port; Debugging Port On The Rx8620 - HP Integrity BL890c - i2 Server Software Manual

Windows server 2008 sp2 and windows server 2008 r2 on hp integrity servers kernel debugging guide

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At the EFI Shell prompt, enter the following command:

EFI Shell> kd -on

Now the shared port on the core cell is enabled for kernel debugging. The state of the port

is consistent across reboots. However, removing power to the system reverts the debug port

back to its default state.

The system displays the following:

============================

KD Kernel Debug Port Enabler

============================

The KD port has been turned ON

Any changes to the KD port will remain persistent across reboots

and power down, as long as power is supplied to the server.

EFI Shell>

When debugging operations are complete, enter the following at the EFI command line to

revert the debugging port back to its default state:

EFI Shell> kd -off

To display the current port state at any time, enter the kd command without any options.

Connect to the debug port

When you know which cell is the core cell, you can connect the 4-pair CAT-5 cable to the RJ45

port on that cell. For example, on the HP Integrity rx8620 server shown in following image, if

the operating system instance that must be debugged is installed in nPartition 1, and the core

cell for that nPartition is cell 1, then you must connect the RJ45 connector to cell 1, as shown by

the arrow. Connect one end of the 4-pair CAT-5 cable to the RJ45-to-DB9F converter and the

other end to that debugging port on the server.

Figure 1-10 Debugging port on the rx8620

On the HP Integrity Superdome, connect the 4-pair CAT-5 cable to one of the RJ45 ports shown

in the following image. You can install HP Integrity Superdome cells in two possible orientations:

with ports above the handle or with ports below the handle.

Debugging the kernel locally